ADU Company in Costa Mesa, CA
Kitchen remodeling in Costa Mesa means working inside 1940s-to-1960s stucco bungalows and ranch homes where the original kitchens were built for a different era: closed off, under-wired, and rarely renovated since the Reagan administration. Most of the Westside’s 5,000 to 6,000 sq ft lots hold single-story homes with galley kitchens under 120 sq ft, and homeowners here are deciding between a full gut renovation and a modest refresh that keeps the footprint but replaces everything inside it. We’re Silverleaf ADU Builders, and we’ve served Costa Mesa since 2016, working across the 92627, 92626, and 92628 ZIP codes. For a free estimate on your Costa Mesa kitchen remodel, call (833) 404-5214.
Why Costa Mesa Homes Are Different
Costa Mesa’s housing stock is older and tighter than most Orange County buyers expect. The 92627 Westside, north of Newport Beach, is a grid of small post-war stucco bungalows on 5,000 to 6,000 sq ft lots, many with alley access and detached garages. The 92626 tracks around Mesa del Mar and South Coast Drive hold 1950s and 1960s ranch homes that have seen piecemeal updates over the decades. What that means in practice: undersized 100-amp electrical panels that need upgrading before any kitchen or ADU project, cast-iron drain lines nearing the end of their life, and lot setbacks so tight that every square foot of interior space has to be justified. The coastal marine layer keeps summers mild and mornings damp, but Santa Ana wind events push hot, dry air through the canyons, so we spec materials and ventilation that handle both conditions without overbuilding. Homeowners who’ve lived here for years understand the trade-off: you get the location, the alley access, and the property value, but the house itself demands more from a contractor than a newer Irvine or Tustin tract home ever would.
Our Main Costa Mesa Services
Most Costa Mesa homeowners call us for one of two projects: adding an ADU to an underused backyard or garage, or modernizing a bathroom that’s been untouched for decades. Both jobs run into the same local realities: older utility panels, tight setbacks, and a city permitting culture shaped by Costa Mesa’s early adoption of state ADU law.
ADU Builders in Costa Mesa
An ADU on a Costa Mesa lot usually means either a detached unit behind the existing house, a garage conversion off the alley, or a junior ADU carved out of the main floor. The Westside’s small lots force creative placement: we’ve seen units squeezed onto the alley side, tucked behind the existing stucco bungalow, and built up rather than out where setbacks allow. Costa Mesa’s 2018-2020 zoning updates made ADU permits more predictable than in neighboring cities, but neighbor parking concerns still surface at city hall, so we plan projects with that reality in mind. One team handles the shell, the interior kitchen and bath, and the utility tie-ins; that’s the scope most generalist remodelers can’t cover. Learn more on our dedicated ADU Builders in Costa Mesa page.

Bathroom Remodeling in Costa Mesa
Bathrooms in Costa Mesa’s older homes tend to be original or only cosmetically updated: 5-by-8 layouts, single vanities, tile over drywall, and exhaust fans that vent into the attic. A proper remodel here means reworking the floor plan where the footprint allows, replacing the subfloor where years of coastal moisture have taken a toll, and bringing the plumbing and electrical up to current code. Homes in 92627 and 92626 with original cast-iron waste lines often need partial repiping before new fixtures go in; we scope that work upfront rather than discovering it mid-project. See the full breakdown on our Bathroom Remodeling in Costa Mesa page.

What happens when you call
- 1
A real person answersNo phone trees — you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Kitchen Remodeling in Costa Mesa
Most Costa Mesa kitchens we walk into are original to the house: closed-off galleys with a single overhead light, one outlet on the counter, and cabinets that have soaked up sixty years of cooking grease. On the Westside, where lots are 5,000 to 6,000 sq ft, homeowners rarely have room to add square footage, so the remodel becomes an exercise in extracting function from a tight footprint: better cabinet storage, an island where the floor plan allows, and electrical service that can actually run a microwave and an air fryer at the same time. The coastal marine layer means mild summers, but the Santa Ana winds push dry heat through in the fall, so we pay attention to ventilation and range hoods that actually vent outside instead of recirculating into the kitchen. This is the work we do most often in Costa Mesa, and our approach to every project: a fixed-price line-item quote, permits pulled, and one contractor team from demolition to final paint. For the broader look at how we think about kitchen projects, see our Kitchen Remodeling hub.
Full Gut Renovation
Signs you need it
You have one outlet per counter run, the layout walls you off from the dining room, and the cabinets are delaminating or the drawers no longer close square.
What it costs in Costa Mesa
Full gut kitchen renovations in Costa Mesa typically run $45,000 to $90,000 depending on footprint, cabinet grade, appliance choices, and whether walls move.
How we do it
We demo to studs, relocate plumbing and electrical to match the new layout, upgrade the panel if the home still has 100-amp service, then rebuild with new insulation, drywall, cabinetry, countertops, backsplash, flooring, and a vented range hood.
Cabinet and Countertop Upgrade
Signs you need it
The layout works but the cabinet faces are worn and the countertops are chipped laminate or dated tile with failing grout.
What it costs in Costa Mesa
Cabinet refacing or replacement plus new countertops in Costa Mesa generally lands between $15,000 and $35,000 depending on cabinet count and stone selection.
How we do it
We either reface existing cabinet boxes with new doors and drawer fronts or replace cabinets entirely, then template and install new countertops, add an undermount sink where plumbing allows, and finish with hardware and a new backsplash.
Kitchen Electrical and Lighting Overhaul
Signs you need it
You juggle countertop appliances across extension cords, the panel is maxed out, and the kitchen still runs on a single ceiling fixture that casts shadows on every work surface.
What it costs in Costa Mesa
Kitchen electrical overhauls in Costa Mesa, including new circuits, under-cabinet lighting, and pendant fixtures, typically run $4,000 to $9,000 before any panel upgrade.
How we do it
We add dedicated circuits for the refrigerator, microwave, and countertop outlets per current code, run new switch legs for layered lighting, and upgrade the panel to 200 amps when the existing service can’t carry the added load.
What Kitchen Remodeling Costs in Costa Mesa
| Item | Typical range in Costa Mesa |
|---|---|
| Full gut renovation | $45,000 – $90,000 |
| Cabinet and countertop upgrade | $15,000 – $35,000 |
| Electrical and lighting overhaul | $4,000 – $9,000 |
How long does a Costa Mesa kitchen remodel take?
Plan on 6 to 12 weeks for a full gut renovation, 3 to 5 weeks for a cabinet and countertop upgrade. Permitting through Costa Mesa’s building division adds 2 to 4 weeks on the front end. Call (833) 404-5214 for a realistic timeline on your specific scope.
Will the price change once work starts?
No, not unless you change the scope. We write fixed-price line-item quotes, and we pull permits and flag hidden conditions like rotted subfloor or cast-iron drain lines during the estimate walkthrough, not after demo starts. Call (833) 404-5214 to schedule a walkthrough.
Brands We Service in Costa Mesa
We work hands-on with the ADU product lines Costa Mesa homeowners ask about most: Abodu, Cover, Dvele, and Mighty Buildings. Each brings a different panel system, assembly method, and lead time, and we’ll walk you through the trade-offs side by side. See our brands for the full comparison.
Pricing for ADU Company in Costa Mesa, CA
| Service | Typical range in Costa Mesa |
|---|---|
| Full gut kitchen renovation | $45,000 – $90,000 |
| Cabinet and countertop upgrade | $15,000 – $35,000 |
| Kitchen electrical and lighting overhaul | $4,000 – $9,000 |
| Bathroom remodeling | $18,000 – $45,000 |
| Detached ADU (site-built or panelized) | $180,000 – $350,000 |
| Garage conversion ADU | $120,000 – $220,000 |
| Junior ADU (interior conversion) | $80,000 – $150,000 |
| James Hardie exterior cladding | $15,000 – $35,000 |
What pushes pricing up in Costa Mesa: undersized lots that complicate access for equipment, 100-amp panels that need upgrading before any project starts, and older cast-iron waste lines that often need replacement on 92627 and 92626 homes built before 1970. Every quote we write is a fixed-price line item with no change orders unless you change the scope, so the number on the proposal is the number you pay.
Neighborhoods We Serve in Costa Mesa
We work across Costa Mesa’s full ZIP map, from the dense post-war bungalow grid of the Westside to the ranch tracts around Mesa del Mar and the hillside streets off South Coast Drive. Each pocket of the city brings different lot conditions, and we price and plan for them accordingly.
- Westside Costa Mesa (92627)
- Mesa del Mar (92626)
- College Park (92626)
- Mesa Verde (92626)
- South Coast Metro-side hills (92628)
For most Costa Mesa neighborhoods, we schedule estimate walkthroughs within 3 to 5 business days, and our project crews are running jobs in the city every week.
Service Area – Cities Near Costa Mesa
Silverleaf ADU Builders works across the coastal and inland Orange County area, including Newport Beach, CA, Fountain Valley, CA, Huntington Beach, CA, and San Joaquin Hills, CA. If you’re just over the city line, our crews are familiar with the adjacent lot conditions and permit offices, and we’re glad to take a look.
Serving Costa Mesa, CA — Our Local Coverage Area
We’re based in the Costa Mesa area and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs About ADU Company in Costa Mesa
We schedule estimate walkthroughs within 3 to 5 business days for most Costa Mesa neighborhoods. For projects in 92627 and 92626, our team is usually already running active jobs nearby, so we can often coordinate faster. Call (833) 404-5214 to get on the calendar.
We pull all Costa Mesa building permits and manage the city review process for ADU and remodel projects. HOA approvals, when they apply, are handled by the homeowner with our documentation support; Costa Mesa has relatively few HOA-governed single-family tracts compared to newer south county cities.
Yes, that’s the core of how we work. The ADU foundation, framing, exterior, and utility tie-ins are all ours, and the interior kitchen and bathroom finishes stay with the same crew and the same line-item quote, so you’re not coordinating two contractors on one small lot. Call (833) 404-5214 for a free estimate.
What happens when you call
- 1A real person answersNo phone trees — talk to a local adu pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you — the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Costa Mesa Customers Say
"Unit came out great and the tenant is happy. The timeline ran long, largely because of how slow the city was on plan check, though a couple of the delays were scheduling on their end."
— Emily Wong"Garage conversion to a one bedroom unit. He handled the plans, the city submittal, and every round of corrections. Took six months from first meeting to final inspection and he never once made the permit process my problem."
— Marcus Carter"Knew the local setback and parking rules cold, which saved us from designing something that would never have been approved."
— Carlos Guzman